About Base64
Base64 is an encoding scheme that converts binary data into ASCII text format using 64 characters (A-Z, a-z, 0-9, +, /).
- Makes binary data safe for text-based systems
- Increases size by approximately 33%
- Commonly used in emails and data URIs
Common Uses
Email
Encoding attachments in MIME
Web
Embedding images in HTML/CSS
API
Transmitting binary data in JSON
Auth
Basic authentication headers
Privacy
All conversions are performed locally in your browser. Your data never leaves your device.